FIX: better locking when importing onchain tx
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b7073abb0e
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@ -1,3 +1,5 @@
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import { Lock } from './Lock';
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var crypto = require('crypto');
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var lightningPayReq = require('bolt11');
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import { BigNumber } from 'bignumber.js';
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@ -304,20 +306,18 @@ export class User {
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}
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if (!already_imported && tx.category === 'receive') {
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let locked = await this._redis.get('importing_' + tx.txid);
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if (locked) {
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// race condition, someone's already importing this tx
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// first, locking...
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let lock = new Lock(this._redis, 'importing_' + tx.txid);
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if (!(await lock.obtainLock())) {
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// someone's already importing this tx
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return;
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}
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// locking...
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await this._redis.set('importing_' + tx.txid, 1);
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await this._redis.expire('importing_' + tx.txid, 3600);
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let userBalance = await this.getBalance();
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userBalance += new BigNumber(tx.amount).multipliedBy(100000000).toNumber();
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await this.saveBalance(userBalance);
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await this._redis.rpush('imported_txids_for_' + this._userid, tx.txid);
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await lock.releaseLock();
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}
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}
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}
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